Substances/foods can trigger mast cells but not be true "allergies."  They are simply mast cell degranulators.  I would think that there could always be trace proteins in the oil that could trigger you.  People who are allergic to peanuts can't tolerate peanut oil, for example.  If you want to use it, I would suggest first use it topically, e.g., rub it into your upper, inner arm, and then cover it for 48 hours.  If it doesn't get red or itchy, then you could try a small amount between your teeth and your lower lip and see if you react.  If your mouth itches, I'd say not to try it again because over-exposure could lead to more severe symptoms.